A day with the crazy Peugeot Onyx

Here at TopGear, we like to think of ourselves as being grounded in reality. Well... sort of. Reality isn't technically a Bugatti Veyron, or even something cheaper, like, say, a pocket-change McLaren 12C. But this is at least all stuff you can experience, stuff you can drive. That's what gets us going.

And it's why we can sometimes be a bit wary of concept cars: they might look real enough, but mostly they're just styling bucks with flight-of-fancy innards, an off-roader powered by rainwater or a supercar fuelled by horse manure... that sort of thing. But the Peugeot Onyx is not like other concept cars.